http://d.puremagic.com/issues/show_bug.cgi?id=9965

           Summary: Wrong Assembly For DIL, SIL Registers
           Product: D
           Version: D1 & D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: iasm, wrong-code
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: dsimcha@yahoo.com


--- Comment #0 from David Simcha <dsimcha@yahoo.com> 2013-04-19 12:47:53 PDT ---
D Source:

import core.stdc.stdio;

void main() {
  ulong stuff;
  asm {
    xor RDI, RDI;
    mov DIL, 1;
    mov stuff, RDI;
  }

  printf("%lld\n", stuff);
}

Output:  0

obj2asm disassembly of main():

        push    RBP
        mov    RBP,RSP
        sub    RSP,010h
        mov    qword ptr -8[RBP],0
        xor    RDI,RDI
        mov    BH,1
        mov    -8[RBP],RDI
        mov    RSI,-8[RBP]
        mov    RDI,offset FLAT:.rodata@64
        xor    EAX,EAX
        call      printf@PC32
        xor    EAX,EAX
        mov    RSP,RBP
        pop    RBP
        ret

The opcode for BH is being generated when the assembly language code says DIL.

Similarly, DH is generated when SIL is in the source code.

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla@digitalmars.com


--- Comment #1 from Walter Bright <bugzilla@digitalmars.com> 2013-04-20 17:30:41 PDT ---
https://github.com/D-Programming-Language/dmd/pull/1916

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Martin Nowak <code@dawg.eu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |code@dawg.eu


--- Comment #2 from Martin Nowak <code@dawg.eu> 2013-04-21 04:02:07 PDT ---
*** Issue 9972 has been marked as a duplicate of this issue. ***

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--- Comment #3 from github-bugzilla@puremagic.com 2013-04-21 04:13:51 PDT ---
Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/c275b372c3ec3cc58a54a4a7da66736b53932eca fix Issue 9965 - Wrong Assembly For DIL, SIL Registers

https://github.com/D-Programming-Language/dmd/commit/bddba0574f25ff06917f6ca3b380c2c515e3963b Merge pull request #1916 from WalterBright/fix9965

fix Issue 9965 - Wrong Assembly For DIL, SIL Registers

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--- Comment #4 from github-bugzilla@puremagic.com 2013-04-21 12:27:30 PDT ---
Commit pushed to dmd-1.x at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/0f741f4665959ec5dc1826d1aa3169e173edb559 Merge pull request #1916 from WalterBright/fix9965

fix Issue 9965 - Wrong Assembly For DIL, SIL Registers

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Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


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